Load Specifications
Load data in caliber .30 Picra with .308 | 165gr | H&N RN H bullet and 21 powders. The key underlying parameters are shown in the table above.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 60% and propellant combustion ≥ 80%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100*² | <<locked>> | 72% | 35,694 psi | 88% | 1250 fps | 91% |
| ADI AP 100² | <<locked>> | 72% | 36,318 psi | 89% | 1184 fps | 100% |
| Alliant 2400*² | <<locked>> | 68% | 35,070 psi | 86% | 1243 fps | 93.4% |
| Alliant BLUE DOT² | <<locked>> | 72% | 36,622 psi | 90% | 1240 fps | 98.8% |
| Alliant Herco² | <<locked>> | 72% | 36,593 psi | 90% | 1115 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 72% | 34,026 psi | 84% | 1004 fps | 100% |
| Hodgdon Clays² | <<locked>> | 68% | 34,011 psi | 84% | 955 fps | 100% |
| Hodgdon LilGun*² | <<locked>> | 76% | 34,766 psi | 86% | 1280 fps | 93.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 26,876 psi | 66% | 889 fps | 100% |
| Maxam CSB 1² | <<locked>> | 64% | 35,839 psi | 88% | 1053 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 68% | 34,940 psi | 86% | 1243 fps | 94.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 25,744 psi | 63% | 902 fps | 100% |
| ReloadSwiss RS 30* | <<locked>> | 92% | 35,549 psi | 88% | 1296 fps | 90.6% |
| SNPE Vectan A0² | <<locked>> | 64% | 36,361 psi | 90% | 1089 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 34,214 psi | 84% | 1230 fps | 96% |
| SNPE Vectan BA7 1/2² | <<locked>> | 64% | 33,591 psi | 83% | 1112 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 68% | 33,924 psi | 84% | 1184 fps | 99.9% |
| Vihtavuori N105² | <<locked>> | 68% | 32,808 psi | 81% | 1181 fps | 100% |
| Vihtavuori N110* | <<locked>> | 84% | 34,316 psi | 85% | 1243 fps | 93.4% |
| Vihtavuori N32C Tin Star | <<locked>> | 84% | 34,577 psi | 85% | 961 fps | 100% |
| Vihtavuori N350² | <<locked>> | 64% | 35,752 psi | 88% | 1138 fps | 100% |
Start Load - Barrel Length: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100*² | <<locked>> | 64% | 27,180 psi | 67% | 1119 fps | 85.7% |
| ADI AP 100² | <<locked>> | 60% | 25,672 psi | 63% | 1040 fps | 100% |
| Alliant 2400*² | <<locked>> | 60% | 26,382 psi | 65% | 1106 fps | 88.3% |
| Alliant BLUE DOT*² | <<locked>> | 60% | 25,280 psi | 62% | 1066 fps | 94.6% |
| Alliant Herco² | <<locked>> | 60% | 27,035 psi | 67% | 1001 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 25,266 psi | 62% | 902 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 28,979 psi | 71% | 896 fps | 100% |
| Hodgdon LilGun*² | <<locked>> | 68% | 25,672 psi | 63% | 1132 fps | 87.2% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 12,879 psi | 32% | 669 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 32,126 psi | 79% | 1014 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 60% | 25,918 psi | 64% | 1102 fps | 89% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 12,096 psi | 30% | 673 fps | 100% |
| ReloadSwiss RS 30* | <<locked>> | 84% | 28,195 psi | 69% | 1175 fps | 85.4% |
| SNPE Vectan A0² | <<locked>> | 60% | 32,721 psi | 81% | 1050 fps | 100% |
| SNPE Vectan BA6 1/2*² | <<locked>> | 72% | 19,189 psi | 47% | 971 fps | 85.4% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 29,805 psi | 73% | 1066 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 26,774 psi | 66% | 1079 fps | 98.4% |
| Vihtavuori N105² | <<locked>> | 60% | 24,801 psi | 61% | 1063 fps | 99.5% |
| Vihtavuori N110*² | <<locked>> | 72% | 23,322 psi | 57% | 1063 fps | 86% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 20,943 psi | 52% | 794 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 31,488 psi | 78% | 1086 fps | 100% |
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 5 powders for .30 Picra loaded with the .308 | 165gr | H&N RN H. Vihtavuori N110 delivers the highest muzzle velocity at 1,243 fps; across all powders the maximum-charge window runs from 889 fps to 1,243 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 5 of the 5 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 63–85 %, leaving at least 15 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. As outliers, Vihtavuori N110 burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss, ReloadSwiss RS 14, SNPE Vectan BA6 1/2 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.